diff options
| author | jhb <jhb@FreeBSD.org> | 2000-12-03 01:22:34 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2000-12-03 01:22:34 +0000 |
| commit | fb0ab4bf941515f86765872b6c80f885c3ff6871 (patch) | |
| tree | a874bcde3630ff28f40ad3113d0f2f79a6dccae9 /sys/kern | |
| parent | d33c1d168c21cc363ad385b8c5a2cea928affa92 (diff) | |
| download | FreeBSD-src-fb0ab4bf941515f86765872b6c80f885c3ff6871.zip FreeBSD-src-fb0ab4bf941515f86765872b6c80f885c3ff6871.tar.gz | |
- Add a mutex to the proc structure p_mtx that will be used to lock accesses
to each individual proc.
- Initialize the lock during fork1(), and destroy it in wait1().
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/init_main.c | 1 | ||||
| -rw-r--r-- | sys/kern/kern_exit.c | 1 | ||||
| -rw-r--r-- | sys/kern/kern_fork.c | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c index c6110fa..81cde0d 100644 --- a/sys/kern/init_main.c +++ b/sys/kern/init_main.c @@ -285,6 +285,7 @@ proc0_init(void *dummy __unused) /* * Create process 0 (the swapper). */ + mtx_init(&p->p_mtx, "process lock", MTX_DEF); LIST_INSERT_HEAD(&allproc, p, p_list); p->p_pgrp = &pgrp0; LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash); diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c index 69f526c..ce3cc21 100644 --- a/sys/kern/kern_exit.c +++ b/sys/kern/kern_exit.c @@ -539,6 +539,7 @@ loop: * release while still running in process context. */ cpu_wait(p); + mtx_destroy(&p->p_mtx); zfree(proc_zone, p); nprocs--; return (0); diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c index 6caa1d2..6d9c6c1 100644 --- a/sys/kern/kern_fork.c +++ b/sys/kern/kern_fork.c @@ -367,6 +367,7 @@ again: bcopy(&p1->p_startcopy, &p2->p_startcopy, (unsigned) ((caddr_t)&p2->p_endcopy - (caddr_t)&p2->p_startcopy)); + mtx_init(&p2->p_mtx, "process lock", MTX_DEF); p2->p_aioinfo = NULL; /* |
